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STUDY OF HORIZONTAL-SPRAY FLUX FORCE/CONDENSATION SCRUBBER
Citation:
Calvert, S. AND S. Yung. STUDY OF HORIZONTAL-SPRAY FLUX FORCE/CONDENSATION SCRUBBER. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/2-76/200.
Description:
The report gives results of a laboratory pilot-scale evaluation of a Flux Force/Condensation (FF/C) scrubber for collecting fine particles, those smaller than 2 micrometers in diameter. FF/C scrubbing includes the effects of diffusiophoresis, thermophoresis, Stefan flow, and particle growth due to water vapor condensation. The FF/C scrubber tested was of horizontal spray configurations. Effects of the scrubber configurations, liquid and gas flowrates, particle number concentration, and the amount of vapor condensation were studied experimentally. Fractional particle penetrations were measured with cascade impactors and are presented in terms of particle penetration as a function of particle size. The experimental results are compared with predictions from mathematical models. Optimum operational regions and the technical and economic feasibility of FF/C scrubbing are determined and demonstrated for a fine particle pollution source. It was confirmed that FF/C scrubbing is an attractive control method for fine particles when high efficiency is required or when the gas is hot enough to evaporate the necessary water vapor for condensation in the scrubber. A program to demonstrate FF/C scrubbing at pilot scale for the control of fine particulate emissions from industrial sources is described.